References

Austic, R.E., 1985. Feeding Poultry in Hot and Cold Climates. In: Stress Physiology in Livestock, Yousef, M.K. (Ed.). Vol. 3. CRC Press, Boca Raton, FL., USA., pp: 123-136.

Bartlett, J.R. and M.O. Smith, 2003. Effect of different levels of zinc on the performance and immunocompetence of broilers under heat stress. Poult. Sci., 82: 1580-1588.
Direct Link  |  

Bienenstock, J., J. Gauldie and D.Y. Perey, 1973. Synthesis of IgG, IgA, IgM by chicken tissues: Immunofluorescent and 14C amino acid incorporation studies. J. Immunol., 111: 1112-1118.
PubMed  |  

Close, B., K. Banister, V. Baumans, E.M. Bernoth and N. Bromage et al., 1997. Recommendations for euthanasia of experimental animals. Part 2. Lab. Anim., 31: 1-32.
Direct Link  |  

Cooper, M.A. and K.W. Washburn, 1998. The relationships of body temperature to weight gain, feed consumption and feed utilization in broilers under heat stress. Poult. Sci., 77: 237-242.
PubMed  |  Direct Link  |  

Devaraj, S., S. Vega-Lopez, N. Kaul, F. Schonlau, P. Rohdewald and I. Jialal, 2002. Supplementation with a pine bark extract rich in polyphenols increases plasma antioxidant capacity and alters the plasma lipoprotein profile. Lipids, 37: 931-934.
CrossRef  |  

Donkoh, A., 1989. Ambient temperature: A factor affecting performance and physiological response of broiler chickens. Int. J. Biometeorol., 33: 259-265.
CrossRef  |  Direct Link  |  

Geraert, P.A., J.C.F. Padilha and S. Guillaumin, 1996. Metabolic and endocrine changes induced by chronic heat exposure in broiler chickens: Growth performance, body composition and energy retention. Br. J. Nutr., 75: 195-204.
CrossRef  |  Direct Link  |  

Gibson, G.R. and X. Wang, 1994. Bifidogenic properties of different types of fructo-oligosaccharides. Food Microbiol., 11: 491-498.
CrossRef  |  

Gibson, G.R., E. Beatty, X. Wang and J.H. Cummings, 1995. Selective stimulation of bifidobacteria in the human colon by oligofructose and inulin. Gastroenteology, 108: 975-982.
PubMed  |  Direct Link  |  

Glasgow of University, 1994. Scot PIL training manual. Glasgow of University, Scotland, UK. http://www.gla.ac.uk/.

Gong, J., R.J. Forster, H. Yu, J.R. Chambers, P.M. Sabour, R. Wheatcroft and S. Chen, 2002. Diversity and phylogenetic analysis of bacteria in the mucosa of chicken ceca and comparison with bacteria in the cecal lumen. FEMS Microbiol. Lett., 208: 1-7.
CrossRef  |  Direct Link  |  

Gonzalez-Esuerra, R. and S. Lesson, 2006. Effect of arginine: Lysine ratios and source of methionine on growth and body protein accretion in acutely and chronically heat-stressed broilers. Poult. Sci., 85: 1594-1602.

Guo, Y., G. Zhang, J. Yuan and W. Nie, 2003. Effects of source and level of magnesium and vitamin E on prevention of hepatic peroxidation and oxidative deterioration of broiler meat. Anim. Feed Sci. Technol., 107: 143-150.
CrossRef  |  Direct Link  |  

Han, A.Y., M.H. Zhang, X.L. Zuo, S.S. Zheng, C.F. Zhao, J.H. Feng and C. Cheng, 2010. Effect of acute heat stress on calcium concentration, proliferation, cell cycle and interlukin-2 production in splenic lymphocytes from broiler chickens. Poult. Sci., 89: 2063-2070.
PubMed  |  

Higgins, D.A., 1975. Physical and chemical properties of fowl immunoglobulins. Vet. Bull., 45: 139-154.

Jacob, J.P. and C.A. Carter, 2008. Inclusion of buckwheat in organic broiler diets. J. Applied Poult. Res., 17: 522-528.
Direct Link  |  

Knight, C.D., C.W. Wuelling, C.A. Atwell and J.J. Dibner, 1994. Effect of intermittent periods of high environmental temperature on broiler performance responses to sources of methionine activity. Poult. Sci., 73: 627-639.
PubMed  |  

Leeson, S. and J.D. Summers, 1991. Commercial Poultry Nutrition. University Books, Ontario, CA., Canada, ISBN: 964-91901-4-7.

May, J.D., B.D. Lott and J.D. Simmons, 1998. The effect of environmental temperature and body weight on growth rate and feed: Gain of male broiler. Poult. Sci., 77: 499-501.
Direct Link  |  

McKee, J.S., P.C. Harrison and G.L. Riskowski, 1997. Effects of supplemental ascorbic acid on the energy conversion of broiler chicks during heat stress and feed withdrawal. Poult. Sci., 76: 1278-1286.
CrossRef  |  Direct Link  |  

Mendes, A.A., S.E. Watkins, J.A. England, E.A. Saleh, A.L. Waldroup and P.W. Waldroup, 1997. Influence of dietary lysine levels and arginine: Lysine ratios on performance of broilers exposed to heat or cold stress during the period of three to six weeks of age. Poult. Sci., 76: 472-481.
Direct Link  |  

NRC., 1994. Nutrient Requirements of Poultry. 9th Edn., National Academy Press, Washington, DC., USA., ISBN-13: 9780309048927, Pages: 176.

Niu, Z.Y., F.Z. Liu, Q.L. Yan and W.C. Li, 2009. Effects of different levels of vitamin E on growth performance and immune responses of broilers under heat stress. Poult. Sci., 88: 2101-2107.
CrossRef  |  PubMed  |  Direct Link  |  

Park, S.O. and B.S. Park, 2009. Effect of dietary inuloprebiotics on performance, serum immunoglobulin and caecal microflora in broiler chickens. Kor. J. Organic Agric., 17: 539-555.

Park, S.O., C.M. Ryu, B.S. Park, H.S. Chae and H.C. Choi et al., 2012. The effects of extreme heat stress on growth performance, lymphoid organ, IgG and cecum microflora of broiler chickens. Int. J. Agric. Biol.

Quinteiro-Filho, W.M., A. Ribeiro, V. Ferraz-de-Paula, M.L. Pinheiro and M. Sakai et al., 2010. Heat stress impairs performance parameters, induces intestinal injury and decreases macrophage activity in broiler chickens. Poult. Sci., 89: 1905-1914.
CrossRef  |  PubMed  |  Direct Link  |  

Reece, F.N. and J.W. Daton, 1971. Use of a time-proportioning thermostat for control of poultry house environment. Poult. Sci., 50: 1622-1626.

SAS., 2004. SAS User's Guide: Statistics. SAS Institute Inc., Cary, NC., USA.

Shakibaie, M.R., K.A. Jalilzadeh and S.M. Yamakanamardi, 2009. Horizontal transfer of antibiotic resistance genes among gram negative bacteria in sewage and lake water and influence of some physico-chemical parameters of water on conjugation process. J. Environ. Biol., 30: 45-49.
PubMed  |  

Sharifi, S.D., A. Dibamehr, H. Lotfollahian and B. Baurhoo, 2012. Effects of flavomycin and probiotic supplementation to diets containing different sources of fat on growth performance, intestinal morphology, apparent metabolizable energy and fat digestibility in broiler chickens. Poult. Sci., 91: 918-927.
CrossRef  |  PubMed  |  Direct Link  |  

Singh, H., S. Sodhi and R. Kaur, 2006. Effects of dietary supplements of selenium, vitamin E, or combinations of the two on antibody responses of broilers. Br. Poult. Sci., 47: 714-719.

Suk, Y.O. and K.W. Washburn, 1995. Effects of environment on growth, efficiency of feed utilization, carcass fatness and their association. Poult. Sci., 74: 285-296.

Temim, S., A.M. Chagneau, S. Guillaumin, J. Michel, R. Peresson and S. Tesseraud, 2000. Does excess dietary protein improve growth performance and carcass characteristics in heat-exposed chickens? Poult. Sci., 79: 312-317.
CrossRef  |  Direct Link  |  

Tizard, 2002. The avian antibody response. Seminars Avian Exotic Pet Med., 11: 2-14.
CrossRef  |  

Wang, Y.W., C.J. Field and J.S. Sim, 2000. Dietary polyunsaturated fatty acids alter lymphocyte subset proportion and proliferation, serum immunoglobulin G concentration and immune tissue development in chicks. Poult. Sci., 79: 1741-1748.
Direct Link  |  

Washburn, K.W., R. Peavey and G.M. Renwick, 1980. Relation of strain variation and feed restriction to variation in blood pressure response to heat stress. Poult. Sci., 59: 2586-2588.
PubMed  |  

Xu, Z.R., C.H. Hu and M.Q. Wang, 2002. Effects of fructooligosaccharide on conversion of L-tryptophan to skatole and indole by mixed populations of pig fecal bacteria. J. Gen. Applied Microbiol., 48: 83-89.
PubMed  |  

Zhang, W.F., D.F. Li, W.Q. Lu and G.F. Yi, 2003. Effects of isomalto-oligosaccharides on broiler performance and intestinal microflora. Poult. Sci., 82: 657-663.
CrossRef  |  PubMed  |  Direct Link  |